NVIDIA DGX Spark installation fails because hard dependency `nvidia-vfx` has no `linux_aarch64` wheel

[SpecterHi]

ARM64/aarch64 installation fails because hard dependency nvidia-vfx has no linux_aarch64 wheel

Body

Summary

I am trying to install Nvidia_RTX_Nodes_ComfyUI on Linux ARM64 (aarch64), but installation fails because the project has a hard dependency on nvidia-vfx, and nvidia-vfx currently does not provide a linux_aarch64 wheel.

From what I can see, this is not a ComfyUI Manager issue. It is a platform compatibility issue caused by the required dependency.

Environment

• OS: Linux
• Architecture: aarch64
• Python: 3.12.3
• CUDA: 13.0
• NVIDIA Driver: 580.126
• ComfyUI: 0.16.1

Reproduction

Install the node, or directly run:

pip install --extra-index-url https://pypi.nvidia.com/ nvidia-vfx

Actual result

Installation fails with:

RuntimeError: Didn't find wheel for nvidia-vfx 0.1.0.1

The debug output shows that the package is checking only these wheel targets:

• cp310 ... manylinux ... x86_64
• cp311 ... manylinux ... x86_64
• cp312-abi3 ... manylinux ... x86_64
• Windows amd64

There does not appear to be any linux_aarch64 wheel.

Additional findings

This repository appears to require nvidia-vfx as a hard dependency:

• requirements.txt includes nvidia-vfx
• pyproject.toml includes nvidia-vfx
• the node imports nvvfx directly at startup

Also, the published nvidia-vfx source package is a wheel-stub package that downloads a prebuilt wheel from https://pypi.nvidia.com/, so this does not look like something users can build locally on ARM from source.

Expected result

One of the following would help:

1. Provide linux_aarch64 support for nvidia-vfx, if ARM64 is intended to be supported.
2. Explicitly document that Nvidia_RTX_Nodes_ComfyUI is currently x86_64-only.
3. Fail with a clearer platform error message in the README or installer path.

Request

Could you confirm whether ARM64/aarch64 support is planned?

If not, please consider documenting that this node currently requires x86_64 Linux or Windows, so ARM users do not spend time debugging an installation path that cannot succeed.

[jovan2009]

These are all the wheels that nvidia provides at this time
https://pypi.nvidia.com/nvidia-vfx/

If none of them work on your system probably it's only nvidia that can do something about it. Being version 0.1.0.1 I guess it is still pretty early in the development cycle.

[PhonicUK]

+1 here, took me a while to even digest that the issue was down to NVIDIA not shipping ARM64 binaries, so not usable on DGX Spark / DGX Station

[os-sos]

Looking forward to a solution to this. Hopefully they catch up to the DGX Spark hardware support. It's a pretty big community.